你笑世界也跟着笑你好两个人都会好
[nĭ xiào shì jiè yĕ gēn zhe xiào nĭ hăo liăng gè rén dōu huì hăo]
The meaning here conveys optimism and the idea that your happiness has a ripple effect. Translated, it could mean: 'When you smile, the world smiles back. When you’re well, both of us will be better off.'